| 摘要 |
The built-in box (1) has a hollow cylindrical housing (2) equipped with a housing inner wall (4), a housing outer wall (3) and two ends. A retaining section (6) is protruded towards an interior in radial direction opposite to the housing inner wall. The retaining section is provided at the housing inner wall for receiving a mechanical connecting element (12) for an energy distributor or a guide sleeve for a cover. |
